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A new study highlights how improving electronic tagging methods for whale sharks could significantly boost marine conservation research. Scientists reviewed global experiences using spring-loaded clamp tags attached to whale shark fins and found that inconsistent methods often reduce data quality and tracking duration.

The researchers now propose best-practice guidelines, including optimal tag positions on the fin and adjusting clamp size and tension to match each shark’s body size. Better tagging systems could provide longer, higher-quality movement data while reducing impacts on these endangered animals. The findings may also help improve tracking of other large marine species.

Womersley, F.C., Green, S., Garcia-Baciero, A. et al. Methods for tagging whale sharks: insights into performance and best practices with a focus on clamp attachments. Anim Biotelemetry (2026). https://doi.org/10.1186/s40317-026-00462-4